braren



June 23, 1925. 1,543,203

Y L. K. BRAREN AUTOMATIC CUTTING MACHINE Filed April 11, 1922 4 Sheets-Sheet 1 Kourad Brake: fiavENToR:

Attorney.

Jun? 23, 1925.

L. K. BRAREN AUTOMATIC CUTTING MACHINE Filed April 11, 1922 E'g'E Lore/1 KQN J firarcn INVENTO R;

g, .45 jtomey.

June! 23, 1925;

L. K. BRAREN AuTouA'rIc CUTTING MACHINE 4 Sheet'-Sheet 5 Filed April 11, 1922 ran fawmifirarcn mvzu-ron;

ix Attorney.

Patented dune 23, 1925.

PATENT orries.

LORENZ 301mm) earthen, or MUNICH, GERMANY.

AUTOTJIATIG GUETIIEG IELACHINE.

application filed April 11 T aZZ whom it may concern:

Be it known that I, Loner-12' Koiqnao BRAREN, a citizen of Germany,,residing at Munich, in the Free State of Bavaria, trierinany, have invented iew and useful in provements in Automatic Cutting Machines, which the following is a specification.

This invention is a machine for auto matically cutting out designs of any de sired form or size in large quantities,where a bolt of material is passing through the machine while one or more cutting heads ai being moved crossways to the. travel of the material the said cutting heads being actuated by patterns located on a reciprocat- F however the respective parts ing table.

The invention comprises as a yery 'i1n portant part' mechanisms {or changing easily the length of the 'movement'ot the reciprocatingtable, for changing readily the form of the patte n. for actuatingtheftransverse cutting lrnilein propn relation to the design being cut without any ti'uther adjustments, for reducing the pressure on the transverse cutting knife, for bringing the niaterialuin ozone of the pathot the design cutting; knives, and for interrupting the feed of the material when desired.

1 attain my object by the arrangement of the several'parts as more tully'hereinafter described and shown on the accompanying dra\' ;'i1igs.l*ignr 1 is a front elevation of the 1nachine.-l ig. 2 :is a top plan View partly in section. Fig. 3 is an elevation of ti 0 right hand end of the machine partly in section. Fig. d isarear View of the machine with the pattern table and driving motor removed. Fig.5 is a detail sectional View through the right hand teed rollers looking 't'ronnthe right hand side ot t-he in: :nine. Fig. (3 is atront view of the met-h anisn shown in Figure after the removal of the cover plate. Fig. i is a top plan View of the transverse cutting knife. Fig. 8 is a section through the teedrollers and the transverse cutting knife-and also shows a n Fig. 9 shows a design head, looking from the left hand of the machine. Fig. 10 is a section r the design cutting head on the center lines o of th shafts, looking in the samedirection 'n Fig. 9. Fig. 11 shows the pattern table. e from the rear end of the'inachinc. is a sectional side View t the pattern Serial Ila-551,706.

table, looking from the -lefthand side ot'tl machine. FigQIZ-Eis a top plan View of l pattern table partly in sec ion.

l .eterringto the drawings, the main shaft 1 (Fig. 2-3) is rotated-by anelectroinotoi 4. through the bevel gears 2 and 3. The shaft 1 is mounted in bearings of a hon-sing consis-ting of tour partsjthe bracketfi for the wor stacking'table, the bracket for the pattern table, the connecting member 7, and a top piece S. The brackets 5 andti, the tables mounted on them, and-the means for actuating them are identical. 'i herel ore similar parts are indicated-by similar erence characters. r'or clearer distinction of the work stacking table have been provided with an indicator. describe the --p-attern table only.

Screws 9 (see :also Fig. 2) fl'astenithe brackets 5 and 6 tothe main frame 10.

Screws 11 connect the parts 5 and 7 aswell '7 and 80f theihousing with each other. The bracket G'lits into'the connecting member 7 and is held in. place by a set screw 12. Thebearing plate 13 takes up the thrust of the bevel gear 3 and also closesthe opening in the housing. The worms lslzandl lyrig idly'inonntedon the main shaft .1, engage with worm gears 15 and 15 which are fastened on the table actuating shafts lGand 16 (see also Fig. 4). The bevelgear 17 is also rigidly inounted on the main shaft '1 and is in mesh with thebevel gear 18, which is-fastened to the shaft l9actuating and supporting the design cutting head. The two ball bearings 20 take up any end thrust. The tubular-parts Ql'and 22 lreep the rarious gears and bearings atthe :proper distance. A gear 23 is fastened, close'to the worm-gear '15,'on the front end of the pattern table actuating'shaft '16, and meshes with anothergear 2t rigidlynionnted onathe shat 25 (see also Fig.

' The said shaft (Fig. is set off square for a short distance near the frontend, and a bushing26 fits slidingly over this portion. One end of this'hnshing-Qti is outwith clutch teeth, which can? be brought into engagement with similar clutch teethon anotherbushh1g2? which lSTlgltlly secured lnthe lower stationary tubular feed'roller 28. The bush 27 is formed in its central portion as a near and meshes with gear 29 which is in It will therefore be siniicient to engagement with the large gear 30 (Fig. 6). Gear 30 is in mesh with the gears 31, 32 and 38. The gear 31 drives another gear 84: fastened rig-idly to a turned down portion of the upper stationary feed roller 35. The gears 32 and 33 are fastened to the two loose feed rollers 37, which are mounted in bearings of the two levers 36. These levers are pivoted on the same stud with gear 30 and in this way the two gears 32 and 83 are kept in mesh with gear 30. The springs 38 pull the loose feed rollers 37 against the fixed feed rollers 28 and The loose feed rollers 37 are supported at their rear end in a similar manner (see Fig. 4) and similar parts are indicated by similar reference characters.

The result of this disposal and arrangement of parts will be a uniform tensile effect of the feed rollers, even with material of unequal thickness passing through.

The gears 29 to 34 inclusive are encased in the gear box 39 with the cover l (Figs. and 6). The gear boX 39 provides also a bearing for the upper feed roller 35. A pair of rods ll with nuts keep the gear box closed and in rigid connection with the rear bracket 42. This bracket is rotatably mounted on the shaft (Fig. 3). In the same way the gear box 39 forms a bearing over the bush ing 27, and the bushing 27 is rotatably sup ported in an arm of the bracket 43, while another arm of the same bracket forms a bearing for the reduced front end of the shaft 25 (Fig. 5). Thus the whole feed roller drive together with the material held between the feed rollers may be swung about the shaft 25 as axle and the material may be brought within or removed from the path of the permanently operating knives of the design cutting head or heads (Fig. 8).

A lever 44 (Fig. 1) is located between four lugs of the cover 40. The design cutting operation can be interrupted by a lateral pressure against the handle of this lever. Ordinarily a spring 45 keeps the feed roller drive in cutting position (indicated by dotted lines on Fig. 8) but may be made inactive by turning the eccentric roller 46 (Fig. 6).

Two rollers 4L7 (Fig. are rotatably attached to the lower end of the lever A and fit slidingly into a groove of the bushing 26. By moving the handle of the lever 44 towards the rear the bushing 27 is uncoupled from the bushing 26 and the constantly rotating shaft 25 and the feed rollers are brought to astandstill. To prevent any movement of the free feed rollers there is attached to the lever 4.4: a detent 48, which engages with teeth out into the end of the turned down portion of the feed roller as soon as bushing 26 has been uncoupled from bushing 27. A hand wheel 4C9 (Fig. 3) fastened to the end of the shaft 25 perinits the turning of the machine when the driving power is shut off.

The pattern table actuating shaft 16 (Figs. 11, 12 and 18) which is rotatably mounted in the table bracket 6 drives a hollow shaft 51 by means of a universal joint 50. A pinion 52 is fastened to the other end of the shaft El. A spring located in the bore of this shaft exerts a certain pressure upon the bolt 54:. A pin 55 slides in slots of the shaft 51 and is fastened in the bolt and also in the rings 56 and 57 which fit slidingly on the shaft 51. The

bushing 58 is held rotatably by its shoulder to the rings 56 and and is rigidly con nected with the sleeve 60 through two pins 59. The sleeve 60 is prevented from turning by lateral faces and fits slidingly in a corresponding recess of the bracket 6, in this way being only free to move up and down. The spring 53, acting through the bolt 5 the pin 55, and the bushing 56 onto the bushing 58, presses the two pins 59 into corresponding grooves of the bracket 6, in this way securing the proper meshing of the pinion with the racks 61 or 62. The racks 61 and 62 are fastened respecvely to rack supports 63 and 6s Plates 5 connect rigidly the rack supports With aeh other and with the ends of the table Figs. 1 and To reverse the movement of the pattern table is necessary to move the pinion 52 from engagement with one rack to engagement with the other. This is attained by reversing means secured to the said racks or their supports, one of these reversers be ing immovably attached at one end of the table, while the other is movable and can be adjusted according to the length of the piece to be cut. l i henever the respective reversing device arrives at the pinion 52, the plate 66 pushes the bolt 54; with a bevelled portion out of the way and moves thereby the pins 59 out of the locking grooves on the bracket 6. The sleeve 60 which is now free to move up or down is restrained in this movement by a block 67 of trapezoid crosssection with a rounding one end, the bolt acting as a guide against the side of this block. 'lhe plate 66 as well as the block 6'? are attached to the supporting plate 68 which. in turn, is fastened to the reversing piece by means of screws. On this revers ng piece 59 teeth are cut leading in semicircle from one rack to the other, the several teeth being worked out in an angle to correspond to the respective position of the pinion shaft 51. The centers of the rounding of the block 6? and of the internal coincide. The pinion 52 is wide enough to engage as well with the racks 6i and with the internal gear teeth of the reversing piece 69. The pinion will roll off on the latter until it meshes with the lili) other-Tack and moves this rack together with the table in the opposite direction. During this-operation thefbolt 54: bears against the rounding of the block '57 and secures proper-meshing of the teeth. hen leaving th'e reversingdevice the bolt 54 actuated by the spring 53 moves outward on a second bevelled portion of the plate 66 until the pins 59 snap into the respective rooves. The pinion 52 now remains in engagement with this rack until the whole proceeding is repeated in the other reversing device.

A few-pins 70 'fastened inthe movable reversing device fit into the tooth'sp'aces of theracl'rs-and ensure the proper correspondence of the teeth o-f-tlie internal gear 69 with the'racks 61 and'62. Forholding this movable reversing device to the racks there are rovided two'nipperlike fingers 71-and 72 which are pivoted on the pin 73 and catch with theircurved portions behind the'racks, ieing held apart by a spring 74. An indicator 75 is fastened to the sup'porting plate 68, a i'neasurin-g scale on the frame 76 of the table proper facilitating an adjustment to 'anyother length.

Thetable issupported by a'pair of rollers 77 which are pivoted on bolts 78=secured to the bracket 6 and by another p air of rollers 81 turning in bearings 7 9 fastened to the table 80. The rollers 81, guided laterally by 'fl'ang'es, run on the upright leg of the angle 82 fastened to the table bracket 6. The rack supports 63 and 64 areguided on suitablyprepared faces of the bracket 6.

- 'So far pattern and work stacking table arealike'and'ditieronly-in size of'th'e table proper. Some additional features are provided on the pattern table. A number of slots 'arecut into thetable SO and th'ebolts 84 lit-with milled off sides into theseslots. The disc/85 and the washer 86 turn on the bolt 84: and clamp the pattern 'band83 which is made of elastic material, for instance springsteel, in orderto assume various pat-- tern forms. Yet, w hen fastened in the various holding pointsythe band 'is stifi' enough not to deflect under the pressure of the design cutting heads. Ontightening the nut, the washer 86 slidesdow'n the inclined side of the disc 85, presses' tlie pattern band83 against the other projection of the disc 85 and cl'an'ips the whole fast upon thetable 80. The washer 86 and the projection of the disc 85 in touch with the pattern band are rounded ofii in such 'a way thatthe band may assume any required curvature. In ase that only a "few different designs are to be cut with a machine. solid pattern plates may be fastened on the table "80 instead of the adjustable pattern band' described. V

There is furtl'iermore "attached to the-pattern table a inechanism "which releases at the proper moment the transverse cutting device for cutting off the material. A cam disc 87 is mounted loosely upon the pattern table actuating shaft '16. The hub on one SlClG'Of this cam hasa notch cut into it. A tooth 88, fastened to the bracket6, fits into this notch andprevents ordinarily a rotation of the cam 87. 'Clutch teeth are cut into the face of the hub on'the opposite side of the cam, corresponding with similar teeth out into a collar 89 rigidly fastened to the shaft 16. The rollers '90 fitting into a groove of the hub of the cam disc 87 arerpivoted to the lever '91 'which is rotatably mounted on a bolt secur'ed'to the bracket 6. A spring 92 keeps the cam 870st of engage ment With the rotating tooth clutch 89; The link 93 connects jointedly the level-91 with one arm o'f-a lever 94 pivoted to the table bracket 6. The roller 95 pivoted to the other arm of this lever is located in the path of two small levers with a toothlike projection, one otthese levers96-being pivoted-to the lower rack support 6 while the otherlever 9? ispivoted to the movable "reversing device in such a way tl at bothlevers may pass by and overeach other, yet both be in a position to actuate the roller '95. Springs '98hold the levers 96 and'97 against faces of the recesses in which they are located. Whenever by {the movement of the table one oi the levers is carried from one side past the roller 95, this roller =willpush the lever 9901', respectii 'ely, 97 aside because the spring92 is sti'li'er than the spring 98. If, however thislever 96 or97 comes from the other side, it will beanagainst tlie face of the'recess and'push the roller 95 out of the way, thereby actuating lever '91 hrouglrthe lever9 l and the link 93. The rollers -withdraw the cam .87 from en- 'gagement with the tooth SSand slide the clutchteeth on the opposite face into mesh with the collar 89, andthe cam 8'7 starts rotating. .The full faceo'f the hub of the cam 8'? b are now against the end of the tooth S8 preventing thus'the return of the cam 87 to its normal position until one revolution has been completed. The notch in the hub coincides now'again with the tooth S8, and the pull of the spring 92 snaps the cam 87 back to the original position where it is'hed stationary until released againby the action ot-the levers 96 or 97.

The roller and the levers 96 and 97 should be positioned in such a way that from the moment ofthe reversal of the table point'of the reversal of the design.

The rotating'cam 87 actuates the lever 1 through rollers 99 (Fig. 4). This lever 100 is fastened on the pin 101 which turns in a bearing 102 secured to the main frame 10. A connecting piece 103 with a universal joint at each end connects the lever 100 with the knife lever 104 (Fig. 7). The knife lever 104 carries the loose transverse cutting knife 110 and is pivoted on the bolt 100 to the end of the knife support 105 to which the stationary knife 108 is fastened. A spring 107 with adjustable tension presses the two levers together (Fig. On the opposite end a similar tension is produced by disposing the cutting mechanism in oblique position to the pull from the lever 100 (Fig. 8). Bolts 109 fasten the stationary knife 108 and its support 105 to the horizontal arm of the main frame 10. Bolts 111 attach the movable knife to the knife lever 10%. To reduce the distance through which the knife has to move for completing a transverse cut shear has been provided from both ends (Fig. 7). To guide the knife blades into contact with each other there are provided on both ends of the stationary knife 108 guiding pieces 112 upon which the knife 110 .slides until it gets in touch with the cutting edge of the blade 108. To attain an easy cut the stationary blade 108 is placed at an angle to the direction of the cut and the movable knife blade 110 is recessed a small distance in back of the cutting edge.

The material to be cut may be guided over a roller 113, mounted in brackets which are fastened to the ceiling of the room (Fig. 1), andin case of tubular fabric it is brought to a uniform width by a spreader 114 (Figs. 3 and The spreader is guided laterally by means of two rollers 115 which are mounted on brackets 110 adjustably fastened to the rods 41. The material thereupon passes through the two pairs of feed rollers into a channel which is formed by two plates 117 and 118 of which the former is secured to the main frame 10 and the latter to a bridge 119 which in turn is bolted to the frame 10 (Fig. 8). The plates bear with their upper edges against the lowerfeed rollers 28 and 3?. A gripper 120, which is held by the springs 12.1 against the knife lever 10 1, serves for holding the material during the cutting operation. The fore edge of the gripper 1.20 protrudes somewhat beyond the knife blade 110 and clamps the material upon the plate 117 before the knife starts cutting. The bolts 122 are fastened in the gripper 120. They slide in slots of the bridge 119 and guide the gripper by means of nuts and washers. To prevent irregular stackingof the cut off pieces. a dash plate 123 is fastened to the frame 10 underneath the transverse cutting device.

The detached pieces are laid up on the reciprocating stacking table (Fig. 1) which is accessible on front and on both ends facilitating the easy removal of the cut pieces without interrupting the operation of the machine.

A desi n cuttin head consists of the frame 124 (Figs. 8, 9 and 10), a knife blade 125 adjustably secured thereto, a movable knife blade 126 held to a knife carrier 129 by means of a clamp 127 and a screw 128, a sw iging lever 130 guiding the knife carrier 129 and a crankshaft 131 imparting to one end ofthe knife carrier 129 a rotating movement. The swinging lever 130 is disposed in such a way that the cutting por tion of the movable knife blaee 120 describes tIQlfilOXllfliifOl) a circular or elliptic curve. A spring 132 presses the movable knife blade 126 against the stationary knife blade 125. The crankshaft 131 is rotated by a gear 133 in mesh with another gear 18 1 driven by the shaft 19.

Both gears are running in recesses of the frame 124; and are enclosed by the cover 135. b which the shaft 19 fits easily so that the gear can slide readily on the shaft. The shaft 19 is mounted on the rear in bearings of the top piece 8 and on the front in the bracket .48, (Fig. 8).

A collar 130 is fastened by a set screw to the sliding tube 137 and through this tube the one design cutting head ismoved back wards and forwards (Fig. 10). The second design cutting head is fastened in a similar manner to the sliding rod 138. The collar 136 is located sideways between the frame 124 and the swinging lever .130 which on the opposite side bears against an arm of the frame 124. The sliding rod 138 is supported on the front, end of the machine in a tubular sleeve 189 which is fastened in the bracket 18 (Fig. The tube 187 with the rod 15-38 slidingin its bore back and forth is slidaloly mounted in bearings of the top piece 8. On the rear end of the rod 138 and of the tube 137 there are rigidly fastened to them two roller brackets 1&0. Two rollers 142 are fastened by stud screws 1 11 to each bracket 1 10. These rollers 142 are disposed one on each side of the pattern band 83 at an angle to the shaft to correspond with the average inclination of the pattern (Fig. 2). A guiding arm 14.3 pivoted on a pin 11% and resting with the screw 115 against the top piece 8 serves for guiding the roller brackets 14-0 sideways (Figs. and 8). Whenever the pattern band is to be adjusted it is of ad vantage to swing the guiding arm 113111)- wards past the vertical line, to turn the roller brackets 14:0 in order to disengage the rollers'1 12 from the pattern band 88 and to shove the roller brackets out of the way.

The operation of the machine is as follows: The end of a new belt of material is laid over the roller 113 and in case of tubu- The gear 1:31 has a square here on.

lar fabric stripped over thespreader 114 and then held between the rotating upper feed rollers 35 and 37. Thesegrip and torward the material until it'is caught by the lower rollers 28 and '37. During this operation the feed roller drive is held by the eccentric roller 46 in thenoncutting position full lines in Fig. 8) and thematerial is out of the path of the circulating design cutting knives 126. I c

In order to make as little waste as possible at the beginning of each new bolt of material it is, necessary to effectuate. the first transverse cut close to the end. For this reason the operator soon as the lower pair of feed rollers have caught the material presses back the lever 4-4 and interrupts the feeding untilthe pattern table reverses. The line on which the material will be cut is now on the level of the design cut ting heads. and these actuated by the pattern'bandj 83 stand in position corresponding to one end of the part to be cut. The operator turns at the same time the eccentric roller d6 and. the spring swings the feed rollers towards the design cutting head. The points of the design cutting knives 126 enter now into the material heldv tight between the four rollers 28, 3 7 and 35, 37 and cut in cooperation. with the lower stationary knife blades 125 the material into strips, while the design cutting headsguided by the pattern on the table move back and forth. The peripheral, speed of the feed rollers being. the same as the speed of the pattern table the design cut by the knives must with inelastic material correspond to the pattern. The table speed however may be chosen faster or slower as the peripheral speed of the feed rollersand a correspondingly elongated or shortened pattern laid out on the table. F or instance with elastic material passing through the machine in stretched condition, the peripheral speed of the feed rollers should be somewhat greater than the speed of the pattern table to cor respond. to the extended length. of the] material. I

After passing. between the lower feed rollers the material suspends freely in the slot formed by the plates 1,17 and 118 (Fig. 8) until it touches the stacking up. table and is taken along by the same. To attain an even stacking, up of the. pieces it is necessary to have the. stacking. up table move at about the same speed at' which. the material is being fed. During themov'ementof the. pat tern; table in one. direction the design is transferred upon. the 'niaterial in one way and during the movement in'theother direction in the opposite way. It is therefore necessary to pile. the detached piecesalternately in opposite directions and this object is attained by, giving. thestacking up table the same n ioyenient as. the pattern t-able except that the moment of reversion is different owing to the distance from the design cutting, head to thestacking up table.

The transverse cutting device is actuated by the. pattern table after each reversal. The gripper 120 holdsthe material during the cutting operation. The material fed during this time collects in the slot formed by the plates 11'? and 118. The knife L10 detaches the material quickly and imparts to thedetached piece a blow which would hinder. a smooth laying up on the stacking up table. The dash plate 123 therefore catches the out off end, breaks the force of the blow and permits the piece to slide smoothly on the still moving table.

After starting the end by hand a bolt of material is cut out and stackedup' entirely automatically. It for any reason as on account of holes or stains, which would cause spoiled pieces, it is desired to pass'a portion of the material without cutting it into strips the operatorby using the lever 44 may interrupt at any time the design cutting and 1 also, if required, the feeding of the mat ial- To cut out a design of any other shape or length the pattern is ad j usted correspondingly and the distance, of'the movementof the pattern and stacking up tables changed by adjusting the movable reversing devices 66t0 69 and 66 to 69' so that the indicators and 75 pointto the respective marks on the scales.

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described for obvious modifications will occur to a person skilled. inthev art.

.(Vhat I claim is 1. In a cutting machine means forfeeding the material through. the .machine, form cutting means for cutting the material. into strips according to the design, a transverse cutting mechanism for cutting the material off crossways, a reciprocating pattern table with a master pattern thereon for guiding the said form cutting means and means for actuating these mechanisms.

2. In a cutting. machine means for feeding thematerial through themachine, form cutting means, movable transversely. to the feed of the material, a reciprocating table,

and 'an adjustable pattern on said table for controlling the movement of said tormentapproximately at right angles to the "feeding direction, a reciprocating table, clamps adjustable on said table, and afiexible'ftape held rigidly by said clamps to said table, said tape controlling the movement of said form cutting means.

In a cutting machine means for feed ing material through the machine, form cutting means movable transversely to the feed of the material, a reciprocating table, adjusting means located movably on said table, and a flexible pattern for controlling the movement of said form cutting means, said pattern arranged to be adjusted to various shapes by said adjusting means.

5. In a cutting machine means for feeding the material through the machine, form cutting means for cutting the material into strips, a reciprocating table, a pattern thereon and connecting members between said pattern and form cutting means.

6. In a cutting machine means for feeding the material through the machine, a plurality of form cutting means movable crossways to the travel of the material through the machine, a reciprocating table, a plurality of patterns fastened thereon and a plurality of connecting members between said patterns and form cutting means.

7. In a cutting machine a reciprocating table, two racks fastened to said table, a retating. pinion meshing alternately with said racks, a fixed reversing device, an adjustable reversing device, both for leading said pinion from one rack to the other, and holding means for keeping said pinion in proper engagement with said racks.

8. In a cutting machine a reciprocating table, two racks fastened to said table, a pinion disposed between said racks, one fixed and one adjustable reversing device, with gear teeth cut on both reversing devices in semicircle for guiding the pinion from one rack to the other rack, holding means for keeping the pinion meshing correctly with said raclrs and different holding means for keeping said pinion in engagement with said reversing devices.

9. In a cutting machine a reciprocating table, two gear racks on said table, a pinion engageable with either rack, an adjustable reversing device and means for locating said adjustable reversing device in proper relation to said racks.

10. In a cutting machine a reciprocating table, gear racks fastened to said table, a gear disposed between and engageable with either of said racks, a fixed and an adjustable reversing device and indicating means showing the length of movement of said tables.

11. In a cutting machine a table, gear racks fastened to said table, a gear disposed between-said racks, engageable with either rack, a stationary reversing device, an adjustable reversing device and indicating means fastened to the adjustable reversing device, in conjunction with a scale on said table.

12. In a cutting machine a master pattern for moving the form cutting means trans versely to the feed of the material, a table for carrying the master pattern, racks fastened to said table, a driving pinion disposed between the racks, engageable with either rack, and reversing devices.

13. In a cutting machine a reciprocating table carrying a master pattern, form cutting'means guided by said master pattern and a second reciprocating table for receiving the cut pieces.

14. Ina cutting machine a reciprocating table with a pattern fastened to it for guiding the form cutting means and a second rccipro rating table for receiving the cut pieces substantially identical with the said pattern table.

15. In a cutting machine means for feeding the material through the machine, form cutting means, a transverse cutting mecha nism for cutting the pieces to'length after the form cutting means have cut the material into strips according to the desired design, a reciprocating table for the master pattern, another reciprocating table for re ceiving the cut pieces and means for actuating these various mechanisms.

16. In a cutting machine means guided by a master pattern, material feeding means, a transverse cutting mechanism for cutting off the material after it has been operated upon by the form cutting means, tripping means connected to the master pattern and connecting members between said tripping means and the trans verse cutting knife, said tripping and connecting means being disposed so as to avoid adjustment for different lengths.

17. In a cutting machine a pattern table, tripping means actuated by the movement of said pattern table a certain distance after the point of reversal. and a transverse cutting mechanism set in motion by the tripping means.

18. In a cutting machine tripping means actuated by the movement of a reciprocating table, a rotating member, and a cam thrown into engagement with said rotating member by the said tripping means.

19. In a cutting machine a reciprocating pattern table, tripping levers carried by the said pattern table, a rotating clutch, a cam thrown into engagement with said rotating clutch by the said tripping means and means for arresting the movement of the cam after one revolution has been completed.

20. In a cutting machine, a reciprocating table, a rotating member, tripping means actuated by the movement of said reciprocating table, a cam thrown into engagement with said rotating member by the said tripping means and means for keeping said cam for one revolution in engagement with the said rotating member.

21. In a cutting machine form cutting means, a feed roller system, arranged in a form cutting KIA unit, turnable about an axis, and means for swinging the materialheld in this feed roller system in or out of the path of the form cutting means.

I 22. In a cutting machine two sets of feed rollers disposed in a unit, turnable about an axis, form cutting means arranged to be opei able upon the material held between the two sets of feed rollers and means for bringing the material held between the feed rollers into the path of the cutting means.

In a cutting machine two stationary feed rollers and two spring actuated feed rollers, pressed against the stationary feed rollers, allv feed rollers positively driven and disposed in a unit turnable about an axis parallelto the axis of the feed rollers.

in a cutting machine a feed roller system, form cutting means, means for start-' ing and ii'iterrupting the form cutting of the material and the same means for starting and stopping the feeding of the material.

25. In a cutting machine in combination a master pattern, a feed roller system, form cu ting means moved back and forth over material by said master pattern, a transverse cutting mechanism and means for ln-inging the material in the feed roller system into the path of the said form cutting means.

26. In a cutting machine the combination of a master pattern, form cutting means moved transversely to the feed of he material by the said 'master pattern, feeding means and the identical means both for starting or interrupting the form cutting and for starting or stopping the feeding of the material.

2?. In a cutting machine feed rollers, form cuttir means movable transversely to the feed of the material, a master pattern oliectuating said movement and a transverse cutting mechanism disposed so that the material travels approximately in a vertical direction.

28. In a cutting machine a reciprocating movable transverse cutting knife, pivoted to the stationary transverse cutting knife and actuated by the said cam.

29. In a cutting machine a stationary transverse cutting knife, a movable knife operating together with the stationary knife, a spring for pressing one end and ac tnating means with oblique pull for pressing the other end of the movable knife against the stationary knife.

30. In a cutting machine a reciprocating work stacking table for receiving the cut off pieces, feeding means for moving the material through the machine, a transverse cutting mechanism and a dash plate to catch the end of the cut off pieces and to assist in laying up smoothly the cut off pieces on said work stacking table.

31. In a cutting machine feeding means, for moving the material with constant speed through the machine, a transverse cutting mechanism and a channel disposed between said feeding mechanism and said transverse cutting mechanism for receiving the material fed by said feeding means during the time consumed in cutting off.

32. In a cutting machine a form cutting mechanism comprising a frame, a stationary knife fastened to said frame, a movable form cuttin knife workin to 'ether with D 7 b D said stationary form cutting knife, a car rier for said movable form cutting knife, means for rotating one end of said carrier and a swing lever pivoted to said frame, said carrier being pivoted to and guided by aid swing lever causing said movable form c tting knife to describe nearly circular curves.

33. In a cutting machine a movable form cutting V knife, a crankshaft driving the same, a pair-of gears, an actuating shaft driving one of said gears yet sliding easily in it and means for moving the form cutting mechanism on the said actuating shaft.

3 f. In a cutting machine two cutting mechanisms actuated by the same means and means for moving said cutting mechanisms independently of each other, one of these means being located inside of the other means.

In testimony whereof I hereunto affix my signature.

LORENZ KONRAD BRAREN. 

